浅析DFM方法在铝合金型材箱体加工中的应用与实践

Application and Practice of DFM Method in Aluminum Alloy Profile Box Processing

新能源汽车动力电池的关键部件即下箱体一般采用铝合金型材焊接工艺。由于这种材料具有质量轻,易加工的优点而得到了广泛应用。“面向制造的设计(Design for Manufacturing),简称DFM”的方法是要求在设计的初始阶段就需要考虑制造。体现在电池系统下箱体的关键工序,如型材挤压、型材零件加工、搅拌摩擦焊、装配等,要求在设计阶段要考虑易加工性和易装配性,同时满足更低的加工成本,更短的时间、更高的质量。文章通过类比和试验的分析方法,具体阐述了这一理论的实践过程。

Aluminum alloy profile welding process is generally used for the lower box,the key component of new energy vehicle power battery.Because of the advantages of light weight and easy processing,this material has been widely used.The method of"design for manufacturing"(DFM)requires that manufacturing should be considered in the initial stage of design.The key processes of the box body under the battery system,such as profile extrusion,profile parts processing,friction stir welding,assembly,etc.,are required to consider the ease of processing and assembly at the design stage,while meeting the requirements of lower processing cost,shorter time and higher quality.In this paper,the practical process of this theory is expounded by means of analogy and experiment.